A husband and wife are in bed when there is a knock at the door. The husband rolls over and looks at his clock -- it's 3:30 a.m. He drags himself out of bed and goes downstairs.
When he opens the door, there is a drunk slumped there. "Hi ya," slurs the stranger. "Can you give me a push?"
"Get lost," says the man. "It's half-past three."
He slams the door and goes back up to bed. He tells his wife about the drunk. She says, "Dave, that wasn't very nice of you. Remember that night we broke down in the pouring rain and you had to knock on that man's door? What would've happened if he'd told us to get lost?"
So, the husband gets back out of bed and goes downstairs. He opens the door and calls out, "Hey, do you still want a push?" A voice answers, "Yes, please."
"Where are you?" calls the man.
The stranger replies, "I'm over here -- on your swing set."